|
|
|
| Design and Rapid Construction of Tsingtao Yangkou Large Section Tunnel in Hard Rock |
| WANG Xiu—fen1，ZHOU Shu—ming2，LUO Xiao—ping2 |
| 1．Tsingtao Road Planning and Design Institute，Qingdao，Shandong 266000，China；2 China Railway Tunnel Survey and Design Institute Co．Ltd，Tianjin 300 1 33，China |
|
|
|
|
Abstract Research purposes: As the controlled project of coastal highway in Tsingtao，the Tsingtao Yangkou Tunnel is about 3 900 m long，16．8 m wide and 9．6 m high with composite lining．The tunnel is composed of two tunnels with 6 driveways for bi—direction．The tunnel passes through granite stratum，and the area of V grade surrounding rock is about 400 m long．Nowadays for construction of tunnel in soft rock．the。’CD”or”CRD”or both—side heading method is adopted．Using these methods，the construction procedure changes frequently，the construction speed is slow，the large—sized machine is unable to work，and there are lots of temporary engineering and discarded projects．
Research conclusions: In order to realize the operation of large—sized machine working，speed up construction process and decrease the temporary engineering，the area of the V grade surrounding rock was reinforced by grouting through pipes in advance and the preliminary support was strengthened following the working face．Also，full section tunneling and benching tunneling method were used，which can make large—sized machines easy to work for speeding up the construction process．The average length of tunneling of a month is 140 m by one working face．The benching tunneling method can be adopted for construction of tunnel in III grade and V grade surrounding rocks．
|
|
Received: 26 July 2009
|
|
|
|
|
|
[1] 中铁隧道勘测设计院．青岛滨海公路北段仰121隧道施工 图设计[Z]．洛阳：中铁隧道勘测设计院，2004．
[2] 中铁十九局集团公司青岛滨海公路五标项目部．青岛滨 海公路北段仰口隧道施工组织设计[z]．青岛：中铁十九 局集团公司，2004．
[3] 铁道部第二勘测设计院．铁路工程设计技术手册·隧道 [K]．北京：中国铁道出版社，1995．
[4] 关宝树．隧道工程施工要点集[M]．北京：人民交通出版 社，2003．
[5] 周书明，任正录．大断面切削式洞门隧道进洞施工方法 [J]．铁道工程学报，2008(1)：72—75．
[6]JTG D70--2004，公路隧道设计规范[s]．
[7]TBl0003--2005，铁路隧道设计规范[S]．
[8] Norwegian Public Roads Administration．Road tunnels[M]． NPRA Service Bureau，2003．
[9]王梦恕，骆建军．客运专线长大隧道设计施工的讨论 [C]／／中国铁路学会．铁路客运专线建设技术交流会论 文集．武汉：长江出版社，2005：186—195．
[10]汤雷，鄢建华，陈仲先．围岩大变形锚杆加固与安全监测 [M]．北京：中国水利水电出版社，2006．
|
|
|
|
2009, Vol. 26 
